function formatPX(str) {
    console.log(str);
    if (typeof str === 'string') {
        return parseInt(str) + "px";
    }
    else if (typeof str === 'number') {
        return str + "px";
    }
}
function setActivity(activity) {
    if ('pop' in activity) {
        activity.pop('爱我还是他');
    }
    if ('jazz' in activity) {
        activity.urban();
    }
}
var test = {
    age: 1,
    'ak': '123',
    'bk': 'sss'
};
